Skly

Skly is a marketplace for developers to buy and sell skills and rules for AI coding tools, such as Claude, ChatGPT, Cursor, VS Code Copilot, and Antigravity.

AI assistants depend on the instructions they receive. Skills are portable instruction bundles built on the open Agent Skills format. Each consists of a SKILL.md file with structured guidelines, along with optional scripts and references. When activated, a skill provides an AI agent with focused expertise for specific tasks, like setting up projects, generating documentation, or conducting security reviews.

Rules are simpler Markdown files added to an AI tool's context to enforce coding standards, naming conventions, and team preferences. All major AI coding tools support them natively.

Developers have shared custom instructions informally across GitHub repositories and Discord channels. Skly provides a proper home for this ecosystem. Sellers can package their expertise, set a price, and connect with developers who need their creations. Buyers receive professionally maintained instructions that work right away.

The platform is tool-agnostic. Sellers tag their listings with compatible AI tools, and buyers filter by the tools they use. Skly offers detailed documentation on the Agent Skills specification, formatting best practices, and platform-specific guides.

Every skill undergoes moderation to maintain trust in the marketplace. Skly manages listings, digital delivery, payments, and seller earnings, allowing creators to focus on developing excellent instructions.